Redhat Enterprise Linux Server Advanced mission critical Update Support (AUS) 6.6

In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, and therefore authorization decisions are improperly cached. This is related to lack of uid checking in polkitbackend/polkitbackendinteractiveauthority.c.

Published: 2019-01-11T14:00:00.000Z
Updated: 2024-08-04T20:16:23.781Z

A double-free can happen in idr_remove_all() in lib/idr.c in the Linux kernel 2.6 branch. An unprivileged local attacker can use this flaw for a privilege escalation or for a system crash and a denial of service (DoS).

Published: 2019-06-18T23:40:34.000Z
Updated: 2024-08-04T19:26:26.644Z

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.

Published: 2019-09-17T15:09:37.000Z
Updated: 2024-08-05T00:26:39.157Z

In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, and can cause incorrect logging, by invoking sudo with a crafted user ID. For example, this allows bypass of !root configuration, and USER= logging, for a "sudo -u \#$((0xffffffff))" command.

Published: 2019-10-17T17:03:28.000Z
Updated: 2024-08-05T00:12:43.383Z

When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

Published: 2020-01-08T19:22:00.000Z
Updated: 2024-08-04T23:03:32.560Z